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Digital Electronics

Digital Electronics
Which of the following is a digital device

 Resistance of a material
 Microphone
 Regulator of a fan
 Light switch

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Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m
 2m-1
 2m+1

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Digital Electronics
How many bits are required to store one BCD digit ?

 3
 4
 1
 2

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 unstable state
 trigger
 tri-state
 inverter

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Digital Electronics
A digital voltmeter has a read out range from 0 to 999 counts, the resolution is

 1.1 V.
  1 mV.
 1 V.
 0.01 V.

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Digital Electronics
How many input and output required for demultiplexer ?

None of these
 one input and one output
 number of selection inputs and one output
 one input and many output

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MORE MCQ ON Digital Electronics

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